Pupils in Phase 1 are assessed using the VB-MAPP (Verbal Behaviour Milestones Assessment and Placement Program), which addresses common barriers to communication, attention and interaction. The curriculum during this phase is centred on an early core curriculum where pupils continue to develop generalisation skills through event-based teaching. This method allows pupils to apply their skills across various settings that align with their interests and motivations. Events in this phase are often general and frequently occur in the child's life or involve activities and places that they regularly encounter, such as a garden centre or supermarket.

The aim of this pathway is to use play to teach communication, attention, and social skills. The learning environment is similar to an early years classroom, curated to engage pupils and encourage them to participate in learning activities for extended periods. These activities are designed to help pupils develop skills highlighted in the VB-MAPP. Pupils practice essential skills while also working on additional abilities like labelling items, imitating actions, and responding to questions. These skills are crucial for academic success and support their ability to engage with the Early Years framework.